Insertion of fastenings



Patented Aug. 14, 1934 uNl'riazo STAT-Es PATENT olaricla: Y

Y 1,969,747 INSERTION F FASTENINGS George Goddu, Winchester, Mass., assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of Massachusetts Application May 3, 1930, Serial No. 449,457

12 Claims.

This invention relates to the insertion of fastenings, particularlyin the manufacture of shoes, and is illustrated herein with reference to the securing of a shoe upper in lasted relationto an l insole and last by fastenings inserted through the shoe upper intothe insole and clenched substantally inthe form vof a helix.

Goodyear welt shoes, as well as shoes of some other kinds, are made with an insole having a rib to which the shoe upper is secured during or after the lasting operation by 'staples driven through the shoe upper into the rib of the insole and clenched by an anvil bearing against the inner surface of the rib. In many instances the L staples kare inserted by a side lasting machine which isV utilizedYto work the portion of the shoe upper extending between the heel breast line and the tip line into lasted relation to the last and insole. They are, therefore, the sole means relied '20 upon to hold the upper in lasted position up to the time of the inseaming operation by which the welt is secured to the lasted upper and insole. It is therefore important thatthe upper be stapled to the rib in a manner which will in- 25 sure that the rib cannot yield outwardly, thereby lessening the tension of the lasted upper and resulting in a poorly lasted shoe.

It is accordingly an object of the present in vention to provide for the insertionV and clenching .30 of suchstaples in a manner which not only will securely anchor the staples in the insole but will also prevent the rib from yielding outwardly vunder the tension imposed by theA lasted upper leather. As illustrated herein this is performed A by clenching the entering ends of the legs of the staples in a substantially helical form against an anvil positioned in the angle betweenthe inner surface of the rib and the outer surface of the insole and closely adjacent to the base of the rib,

, -40 the anvil being provided with clenching cavities formed and arranged to clench the entering ends of the legs of the staple in a substantially helical form, the helically clenched portions lying in thev extreme base of the rib of the insole andvin the A substance of the insole adjacent to but below'the rib. The strain exerted by the .shoe fupper on the staples isgthustransmitted tothe body of the insole in such a way that there is no danger ofthe rib yielding and allowing thershoe upper to become slack.

It `shouldbe understood that the invention is 'not limitedto use in 'connection with the Vstaple lasting of shoes. Fastenings clenched in accordance with the` invention may be used yfor 1 55 other purposes-than the securing of shoe uppers in lasted relation and fastenings other than staples maybe clenched in accordance with the invention. n Y y In various of its aspects my invention comprises g a staple or other fastening anchored with a sub- '50 stantially helical clench in the stock in' which it is driven; a shoe or other article parts of which 'side lasting machine provided with means fox-'75 inserting staples to secure a shoe lupper in lasted relation to an insole and last, the shoe upper, the insole and the last being shown in cross section;

Fig. V2'is a view on a somewhat larger scale of -80 the work'engaging portions of the machine of Fig. 1 and of the workpiece which they engage, showing particularly the form and the location in which the staple is clenched; e

Fig. 3 is a diagrammatic perspective View on 185 a still larger scale showing the driver and clenching anvil of the machine together with a'staple substantially at the conclusionof the clenching operation;

Figfliis aview on yet a larger scale of the'90 clenching anvil of the machine, Aa partly clenched 'staplebeing indicated at the left-hand side of that figure;VU A

Figs. 5 and 6 are'longitudinal sectional views "through the clenching anvil on the line V-V of A Fig. 4, `showing the' relation of the anvil to a staple at different points in the clenching operation;

Fig. 7 is a section on the line VTI-VII of Figs.

4 and 6; and

l 8 is a section on the linerVlII-V-VIII of Figs. 4 and 6. Y

. AAs pointed out above the invention is disclosed herein with reference tothe-securing of a shoe upper in lasted relation to an insole and lastby..105 staples inserted through the shoe upper into the insole and clenched substantially in the form of a helix. Thus Figs. 1 and 2 showthev nozzle 10, driver 12 and anvil 14 of a staple siderlasting machin@ which may be ofthe characterfully. dis- ..110

closed in Letters Patent of the United States No. 1,796,451, granted March 17, 1931, on a copending application led in my name, to which reference may be had for a complete disclosure of the machine. It will be understood that during the performance of the lasting operation the shoe upper 18 is Worked progressively'into lasted relation to the last `20 and insole22, being se'curedin that relatin by staples'24inserted'through themarrginal portion 16 of the upper 18 into'tlre lrib 26 of the insole 22, the entering ends of the legs of the staples 24 emerging from the inner sur'face of the rib 26 and being turned backintosthe sub stance of the rib and clenched by clenching cavities 28 formed in the anvil f4.' dnveniently the anvil -14 is adjustably mounted "as indicated Tat 30 in Fig. 1.

In accordance with the present invention th'e legs of the staples are clenched by the clenching cavities 28 of the anvil 14 in a substantially helical form, as indicated in Figs. 2, 3, 4 and 6, fthe `clenched,'.portion 'f 'the `staple, "moreover, vbeinglocated'inthe rib 26 at'its'eitreinebas'eand inthe body of the insole adjacent to the rib, as bestishown 'inFigfZ To accomplish'thisthe lpftion'of the anvil'14 eontaininglthe clncliing cavities 28 is -positioned against'the'base "ofthe 'ib'as-illustratedin-Figs. 1 and -2. 'Theformatio'n the cienening :surface 'f Line cavities '28 'is a tl'xfeef'd'i'rinsioial ou'ive, 'that is vt0 'say it is a euri/:edlsfaceevrycross Ys 'etin 'o'f which is ra curved line, and it iis 'located non-'symmetrically `withrespeettotlieliiie "'fidrivefa's' will 'be "evident byaeonipaisn '`f Figslyxf. 'l and' 8. ".Referring paiticiilarfly to `Fi'g. 4, y it,4 'v'vill lbe l'iict'ed that the `line `cf "drive `(iepre'sente'd"byla fragment ofthe "fds's "bar "f the staplefrnicatedjat "si 'and thje cross section of a -leg df the s'tapleiiirdcated'at 32) is considerablyabove the lifI/ie'VA-V'ithre- "sp'ect,to'ivhichlportidns 'f`the clenching cavities adjacent tothe line .Tv-lv are symmetrical. By 'fiei-enceto Figsjs :and "c, 'ann-to ings. "'1l and "8, fqnih are 'cross seetibns cn-tneiinesvII-VII 'and viii-virirespectviy "6i Fig-s. 44 and 6, itt/urbe -seen thatthe clenching cavities are of such a vforination"that 'when fstifu'ckbytle entering 'ends ftue regs or a :staple they "tenti Ato' nenect trie lenterng .ends df Ltlielegs fthestaplelprbgressivly away fr'l'n each other, "syirinetrically'vvitll respect tothe medianfplane 'jf 'the r'staple and a'ft the same T'tiin'e downwardly (asv ifievved 'in Fig. 4) aniimtly baekintne general .un-'ecnon .'fro'm vihinltheynave eci-rre, *as indicated in Figs. and't, the result'bein-g a substantiauyzhelrcal ,15 or, corkscrew clench as shown in Figs-2 and 3 Vand. as indicatedbyiconipaison 'of `F1g"s.f4 and 6. `order tto "facilitate Lthepositioning "of 'the anvil i14 at /thelbase 'of 'th`e`rib "1`6, thejl'ewerjportion of the anvil isV cut oi as indicated'by tlie line, 4`0 "in`lig, T4. @The portion offthe fclen'cling surfaces 6i the cavities 28 which are 'thus 'removed are Knon-esse'ential andthe elenhing'operation"iszin no Way interfer'fe'd With`by the "elimination ef r-thisfportionlof the anvil.

When staples inserted to`hl'd 'the upper in llastedrelation tothe-insole and lastoa Goodyear .welt ashoe are clenched in this fas'hionthe Lenteringendfsgef the staplel-egs are engaged when `Itley -emerge .-from ytl-ie innersurface i vthe rib r116atftl'lerinsoleZ2`-by theclencl'iing.cavities'B f tlieranvilg14'andarefcurvediprogressively' through Dasubstantial-lfy -heliea1;path backinto the 16 fof the "insele- ZZ-handftoward the :.innerssurface. of y@the iihscl'e, iinally anchoring lthemselves in :the B iisoleincaimanner which prevents? the rrib .f from yielding under the tension of the lasted shoe upper.

The staple inserting mechanism described above is not claimed herein since it is claimed in my copending divisional application Serial No. 584,396, led Jan. 2, 1932.

Having thus described my invention what I j clairn as -new and desire rto 'lsecure by Letters Patent of 'tlieTUIited States is:

1. MAstaple formed of small wire the legs of Ywhich are anchored with a. substantially helical 'lench in stock into which the staple is driven.

formed of small wire the legs of lWhich p ass completely through stock into which "theistaple islrivn-'and in which said legs are anchored "With l'a substantially helical clench.

3. An 'aticle comprising two or more layers fof Amaterial "secured together by one or more staples the ends of the legs of which are in a plane Isibstantially normal to the longitudinal axis of" v thedegs Yand inserted through two or more lof Ythe layers Aof material andi are clenched in "the material fin a-.slbstantillly helicalform. Y 4. An-Kartile lcomprising a plurality -f'layers o f material securedtogether'by a. staple .the 'legsj 100 otwhichnpass through Athe llayers f material and are clenhedin 'thematerial-'in 'as'bstan- Itiallyy helical form, 'the planes f the endsfthe `legs-f the staple being sbstantially normal to th'e longitudinalaxis o'f the legs.

5.!A shoe yhaving its upper sec V'ed v'inlas'tedj105 relation to its insole by"'a fastening linserted. 'through the'upper intothens'leand clenched in a substantially llic'aliom. v

s. "A shoe navingfits uppe'r'seeureu in 'lastedmo relatinto a'ribbe'd insole bystaples 'thelegs of which Varel inserted 'through "the upper" into the krit or the Ainsole and 'are c1enire'd`mthelrbiof the insole in a substantially helical torni.

'7. A shoe having its-upper securedin lstedms 'relationlto .afnn f'itsinsoie by 'fastnings which pass throughthepperandthe'ib `6 the insole and are clenched in vthe .substance'of' the insole Substantially in the'fdm `0`f Ha Lhelix loatd "at the Mbase .of -the "rib if "tl'e insole and' etndig- `from thenonwlencliedlpo'tin ''f each'fastening 4 toward the mner surface ftne insmewithout passing through 'sadsurface f8. Ashoe 'having its upper 'secured 1in `lasted relation 'to' itsinsle by staples tlie legs f "which H25 pass throu'gh "theupper 4and into the "insole" and "are .clenchedxinthek substance of the insmesb- "s't'a'ritially initlie v"form' of a 'hellxext'eriding liro'x'n the 'non-"clenched portions of the 'st'aple legs "to- "WardtleV-nnel sufaceofthe iIISle'but Without passingthrough 'said surface. y

shoe *having its upper "secured in vlasted "relation "to fa ribbed 'insole ""by Stapes 'the fleg's f which. passthrough the 'upper yand''the'rib"offthe insolearfdiare clenched linfthe substaneefof the insole Substantiauy in thefform loir ia Ih'njx eur-"135 `'tending v'from "the noneclen'ched portio'ns 'o'f rthe staple legst toward thesinner. surfaceof th'e'insole. 10.. That improvement Ain methods' of inserting staples Athrough.agshoe 'upper into an insole to non the upper 4in lasted relation t9 the. inslemo characterized by 'deflecting'the leg'sf the stables -simultaneously and-progressivly..towardthe inner surface of theinsole and-lengthwise of the shoe and Widthwise of Vthe shoe'..as .they are `clenched, whereby Athe `end.portions fzthe-legs K`of rthe,stapleareelenchedfeacnin athreedimen sional curve. n.

11. .That improvement` in methods ci manuy"iacturing shoes which comprises `inserting .fas- 150 12. I'hat improvement in methods of inserting: la staples through a. .shoei upper into a ribbed insane` l to hold the upper in lasted relation to the insole;- characterized by deflecting the legs of the staples; as they come through the rib simultaneously and progressively toward the inner surface of the insole and lengthwise of the shoe and widthwise of the shoe, whereby the end portions of the legs of the staple move each in a three-dimensional*` path as they are clenched.

GEORGE GODDU` 

